"Is it possible to convert from rapidminer exampleset into weka instances ?"

Hi, i don't know that this question make sense for you or not but i like some functionality from weka and need to use them in my rapid miner project.  You can say its 30% of my task which i want to do in weka and 70% in Rapidminer. I need to convert from RapidMiner example set into weka instances perform some operations on those instances in weka and convert back into Rapid miner exampleset, while searching on internet i found this class

http://www-ai.cs.uni-dortmund.de/LEHRE/VORLESUNGEN/MLRN/WS0809/rm-api/com/rapidminer/tools/WekaTools.html

But it is not present in rapidminer. I am using rapidminer version 5.3.013, Can any one tell me which class this functionality is moved now ? or  how can i convert from rapidminer exampleset into weka instances ?